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P0864 OBD-II Trouble Code: Traction Control Module (TCM) Communication Circuit Range/Performance
P0864 means there is an issue with the communication circuit in the traction control module, likely due to a defective ON/OFF switch or module itself.

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I have a 2009 VW Jetta S 2.5L. Why does my car turns on but then it turns off after driving it for a bit/while?
These are the following definitions for the codes you've received: P0864 - Transmission control module (TCM) communication circuit -range/performance problem P0070 - Ambient Air Temperature Sensor - (possibly shorted but most likely not related) P0734 - Gear 4 Incorrect...

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